72 citations · 168 across the 4 of their papers we have counts for
4 papers
Rotational velocities of nearby young stars
Patrick Weise, Ralf Launhardt, Johny Setiawan +1
Stellar rotation is a crucial parameter driving stellar magnetism, activity and mixing of chemical elements. Furthermore, the evolution of stellar rotation is coupled to the evolut…
Planets around active stars
J. Setiawan, P. Weise, Th. Henning +8
We present the results of radial velocity measurements of two samples of active stars. The first sample contains field G and K giants across the Red Giant Branch, whereas the secon…
Evidence for a planetary companion around a nearby young star
J. Setiawan, P. Weise, Th. Henning +3
We report evidence for a planetary companion around the nearby young star HD 70573. The star is a G type dwarf located at a distance of 46 pc with age estimation between 20 and 300…
Multi-periodic oscillations of alpha Hya
J. Setiawan, P. Weise, M. Roth
We report the detection of multi-periodic oscillations of the cool evolved star alpha Hya (HD 81797, K3II-III). Two-hundred and forty-three high-resolution spectra (R=48,000) of th…